From fdce765861d48183380d512f1b21c021b03ff545 Mon Sep 17 00:00:00 2001
From: Abdo <abdo@abdnh.net>
Date: Fri, 27 Jun 2025 12:36:27 +0300
Subject: [PATCH] Make PYTHONPYCACHEPREFIX point to an absolute path (#4111)

---
 build/runner/src/build.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/build/runner/src/build.rs b/build/runner/src/build.rs
index 5e3042aba..535254736 100644
--- a/build/runner/src/build.rs
+++ b/build/runner/src/build.rs
@@ -67,7 +67,10 @@ pub fn run_build(args: BuildArgs) {
             "MYPY_CACHE_DIR",
             build_root.join("tests").join("mypy").into_string(),
         )
-        .env("PYTHONPYCACHEPREFIX", build_root.join("pycache"))
+        .env(
+            "PYTHONPYCACHEPREFIX",
+            std::path::absolute(build_root.join("pycache")).unwrap(),
+        )
         // commands will not show colors by default, as we do not provide a tty
         .env("FORCE_COLOR", "1")
         .env("MYPY_FORCE_COLOR", "1")